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kLdrModMachO.h@ 3525

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Last change on this file since 3525 was 3525, checked in by bird, 18 years ago
made the format headers usable externally.
File size: 40.9 KB

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1	/* $Id $ */
2	/** @file
3	* Mach-0 structures, types and defines.
4	*/
5
6	#ifndef __kLdrModMachO_h__
7	#define __kLdrModMachO_h__
8
9	#include "kLdrBase.h"
10
11	/** @defgroup grp_mach_o The Mach-O Structures, Types, and Defines.
12	* @{
13	*/
14
15
16	#ifndef IMAGE_FAT_SIGNATURE
17	/** The FAT signature (universal binaries). */
18	# define IMAGE_FAT_SIGNATURE UINT32_C(0xcafebabe)
19	#endif
20	#ifndef IMAGE_FAT_SIGNATURE_OE
21	/** The FAT signature (universal binaries), other endian. */
22	# define IMAGE_FAT_SIGNATURE_OE UINT32_C(0xbebafeca)
23	#endif
24
25	/**
26	* The fat header found at the start of universal binaries.
27	* It is followed by \a nfat_arch numbers of \a fat_arch structures.
28	*/
29	typedef struct fat_header
30	{
31	uint32_t magic;
32	uint32_t nfat_arch;
33	} fat_header_t;
34
35	/**
36	* Description of fat file item.
37	*/
38	typedef struct fat_arch
39	{
40	int32_t cputype;
41	int32_t cpusubtype;
42	uint32_t offset;
43	uint32_t size;
44	uint32_t align; /*< Power of 2. /
45	} fat_arch_t;
46
47
48
49	#ifndef IMAGE_MACHO32_SIGNATURE
50	/** The 32-bit Mach-O signature. */
51	# define IMAGE_MACHO32_SIGNATURE UINT32_C(0xfeedface)
52	#endif
53	#ifndef IMAGE_MACHO32_SIGNATURE_OE
54	/** The 32-bit Mach-O signature, other endian. */
55	# define IMAGE_MACHO32_SIGNATURE_OE UINT32_C(0xcefaedfe)
56	#endif
57	#define MH_MAGIC IMAGE_MACHO32_SIGNATURE
58	#define MH_CIGAM IMAGE_MACHO32_SIGNATURE_OE
59
60	/**
61	* 32-bit Mach-O header.
62	* This is followed by \a ncmds number of load commands.
63	* @see mach_header_64
64	*/
65	typedef struct mach_header_32
66	{
67	uint32_t magic;
68	int32_t cputype;
69	int32_t cpusubtype;
70	uint32_t filetype;
71	uint32_t ncmds;
72	uint32_t sizeofcmds;
73	uint32_t flags;
74	} mach_header_32_t;
75
76
77
78	#ifndef IMAGE_MACHO64_SIGNATURE
79	/** The 64-bit Mach-O signature. */
80	# define IMAGE_MACHO64_SIGNATURE UINT32_C(0xfeedfacf)
81	#endif
82	#ifndef IMAGE_MACHO64_SIGNATURE_OE
83	/** The 64-bit Mach-O signature, other endian. */
84	# define IMAGE_MACHO64_SIGNATURE_OE UINT32_C(0xfefaedfe)
85	#endif
86	#define MH_MAGIC_64 IMAGE_MACHO64_SIGNATURE
87	#define MH_CIGAM_64 IMAGE_MACHO64_SIGNATURE_OE
88
89	/**
90	* 64-bit Mach-O header.
91	* This is followed by \a ncmds number of load commands.
92	* @see mach_header
93	*/
94	typedef struct mach_header_64
95	{
96	uint32_t magic;
97	int32_t cputype;
98	int32_t cpusubtype;
99	uint32_t filetype;
100	uint32_t ncmds;
101	uint32_t sizeofcmds;
102	uint32_t flags;
103	uint32_t reserved; /*< (for proper struct and command alignment I guess) /
104	} mach_header_64_t;
105
106
107	/** @name File types (mach_header_64::filetype, mach_header_32::filetype)
108	* @{
109	*/
110	#define MH_OBJECT UINT32_C(1) /*< Object (relocatable). /
111	#define MH_EXECUTE UINT32_C(2) /*< Executable (demand paged). /
112	#define MH_FVMLIB UINT32_C(3) /*< Fixed VM shared library. /
113	#define MH_CORE UINT32_C(4) /*< Core file. /
114	#define MH_PRELOAD UINT32_C(5) /*< Preloaded executable. /
115	#define MH_DYLIB UINT32_C(6) /*< Dynamically bound shared library. /
116	#define MH_DYLINKER UINT32_C(7) /*< Dynamic linker. /
117	#define MH_BUNDLE UINT32_C(8) /*< Dymamically bound bundle. /
118	#define MH_DYLIB_STUB UINT32_C(9) /*< Shared library stub for static linking. /
119	#define MH_DSYM UINT32_C(10)/*< Debug symbols. /
120
121	/** @} */
122
123
124	/** @name Mach-O Header flags (mach_header_64::flags, mach_header_32::flags)
125	* @{
126	*/
127	#define MH_NOUNDEFS UINT32_C(0x00000001) /*< No undefined symbols. /
128	#define MH_INCRLINK UINT32_C(0x00000002) /*< Partial increment link output. /
129	#define MH_DYLDLINK UINT32_C(0x00000004) /*< Food for the dynamic linker, not for ld. /
130	#define MH_BINDATLOAD UINT32_C(0x00000008) /*< Bind all undefined symbols at load time. /
131	#define MH_PREBOUND UINT32_C(0x00000010) /*< Contains prebound undefined symbols. /
132	#define MH_SPLIT_SEGS UINT32_C(0x00000020) /*< Read-only and read-write segments are split. /
133	#define MH_LAZY_INIT UINT32_C(0x00000040) /*< Obsolete flag for doing lazy init when data is written. /
134	#define MH_TWOLEVEL UINT32_C(0x00000080) /*< Uses two-level name space bindings. /
135	#define MH_FORCE_FLAT UINT32_C(0x00000100) /*< Task: The executable forces all images to use flat name space bindings. /
136	#define MH_NOMULTIDEFS UINT32_C(0x00000200) /*< No multiple symbol definitions, safe to use two-level namespace hints. /
137	#define MH_NOFIXPREBINDING UINT32_C(0x00000400) /*< The dynamic linker should not notify the prebinding agent about this executable. /
138	#define MH_PREBINDABLE UINT32_C(0x00000800) /*< Not prebound, but it can be. Invalid if MH_PREBOUND is set. /
139	#define MH_ALLMODSBOUND UINT32_C(0x00001000) /*< Binds to all two-level namespace modules of preqs. Requires MH_PREBINDABLE and MH_TWOLEVEL to be set. /
140	#define MH_SUBSECTIONS_VIA_SYMBOLS UINT32_C(0x00002000) /*< Safe to divide sections into sub-sections via symbols for dead code stripping. /
141	#define MH_CANONICAL UINT32_C(0x00004000) /*< Canonicalized via unprebind. /
142	#define MH_WEAK_DEFINES UINT32_C(0x00008000) /*< The (finally) linked image has weak symbols. /
143	#define MH_BINDS_TO_WEAK UINT32_C(0x00010000) /*< The (finally) linked image uses weak symbols. /
144	#define MH_ALLOW_STACK_EXECUTION UINT32_C(0x00020000) /*< Task: allow stack execution. (MH_EXECUTE only) /
145	#define MH_VALID_FLAGS UINT32_C(0x0003ffff) /*< Mask containing the defined flags. /
146	/** @} */
147
148
149	/** @name CPU types / bits (mach_header_64::cputype, mach_header_32::cputype, fat_arch::cputype)
150	* @{
151	*/
152	#define CPU_ARCH_MASK INT32_C(0xff000000)
153	#define CPU_ARCH_ABI64 INT32_C(0x01000000)
154	#define CPU_TYPE_ANY INT32_C(-1)
155	#define CPU_TYPE_VAX INT32_C(1)
156	#define CPU_TYPE_MC680x0 INT32_C(6)
157	#define CPU_TYPE_X86 INT32_C(7)
158	#define CPU_TYPE_I386 CPU_TYPE_X86
159	#define CPU_TYPE_X86_64 (CPU_TYPE_X86 \| CPU_ARCH_ABI64)
160	#define CPU_TYPE_MC98000 INT32_C(10)
161	#define CPU_TYPE_HPPA INT32_C(11)
162	#define CPU_TYPE_MC88000 INT32_C(13)
163	#define CPU_TYPE_SPARC INT32_C(14)
164	#define CPU_TYPE_I860 INT32_C(15)
165	#define CPU_TYPE_POWERPC INT32_C(18)
166	#define CPU_TYPE_POWERPC64 (CPU_TYPE_POWERPC \| CPU_ARCH_ABI64)
167	/** @} */
168
169
170	/** @name CPU subtypes (mach_header_64::cpusubtype, mach_header_32::cpusubtype, fat_arch::cpusubtype)
171	* @{ */
172	#define CPU_SUBTYPE_MULTIPLE INT32_C(-1)
173	#define CPU_SUBTYPE_LITTLE_ENDIAN INT32_C(0) /*< figure this one out. /
174	#define CPU_SUBTYPE_BIG_ENDIAN INT32_C(1) /*< ditto /
175
176	/* VAX */
177	#define CPU_SUBTYPE_VAX_ALL INT32_C(0)
178	#define CPU_SUBTYPE_VAX780 INT32_C(1)
179	#define CPU_SUBTYPE_VAX785 INT32_C(2)
180	#define CPU_SUBTYPE_VAX750 INT32_C(3)
181	#define CPU_SUBTYPE_VAX730 INT32_C(4)
182	#define CPU_SUBTYPE_UVAXI INT32_C(5)
183	#define CPU_SUBTYPE_UVAXII INT32_C(6)
184	#define CPU_SUBTYPE_VAX8200 INT32_C(7)
185	#define CPU_SUBTYPE_VAX8500 INT32_C(8)
186	#define CPU_SUBTYPE_VAX8600 INT32_C(9)
187	#define CPU_SUBTYPE_VAX8650 INT32_C(10)
188	#define CPU_SUBTYPE_VAX8800 INT32_C(11)
189	#define CPU_SUBTYPE_UVAXIII INT32_C(12)
190
191	/* MC680xx */
192	#define CPU_SUBTYPE_MC680x0_ALL INT32_C(1)
193	#define CPU_SUBTYPE_MC68030 INT32_C(1)
194	#define CPU_SUBTYPE_MC68040 INT32_C(2)
195	#define CPU_SUBTYPE_MC68030_ONLY INT32_C(3)
196
197	/* I386 */
198	#define CPU_SUBTYPE_INTEL(fam, model) ( (int32_t)(((model) << 4) \| (fam)) )
199	#define CPU_SUBTYPE_INTEL_FAMILY(subtype) ( (subtype) & 0xf )
200	#define CPU_SUBTYPE_INTEL_MODEL(subtype) ( (subtype) >> 4 )
201	#define CPU_SUBTYPE_INTEL_FAMILY_MAX 0xf
202	#define CPU_SUBTYPE_INTEL_MODEL_ALL 0
203
204	#define CPU_SUBTYPE_I386_ALL CPU_SUBTYPE_INTEL(3, 0)
205	#define CPU_SUBTYPE_386 CPU_SUBTYPE_INTEL(3, 0)
206	#define CPU_SUBTYPE_486 CPU_SUBTYPE_INTEL(4, 0)
207	#define CPU_SUBTYPE_486SX CPU_SUBTYPE_INTEL(4, 8)
208	#define CPU_SUBTYPE_586 CPU_SUBTYPE_INTEL(5, 0)
209	#define CPU_SUBTYPE_PENT CPU_SUBTYPE_INTEL(5, 0)
210	#define CPU_SUBTYPE_PENTPRO CPU_SUBTYPE_INTEL(6, 1)
211	#define CPU_SUBTYPE_PENTII_M3 CPU_SUBTYPE_INTEL(6, 3)
212	#define CPU_SUBTYPE_PENTII_M5 CPU_SUBTYPE_INTEL(6, 5)
213	#define CPU_SUBTYPE_CELERON CPU_SUBTYPE_INTEL(7, 6)
214	#define CPU_SUBTYPE_CELERON_MOBILE CPU_SUBTYPE_INTEL(7, 7)
215	#define CPU_SUBTYPE_PENTIUM_3 CPU_SUBTYPE_INTEL(8, 0)
216	#define CPU_SUBTYPE_PENTIUM_3_M CPU_SUBTYPE_INTEL(8, 1)
217	#define CPU_SUBTYPE_PENTIUM_3_XEON CPU_SUBTYPE_INTEL(8, 2)
218	#define CPU_SUBTYPE_PENTIUM_M CPU_SUBTYPE_INTEL(9, 0)
219	#define CPU_SUBTYPE_PENTIUM_4 CPU_SUBTYPE_INTEL(10, 0)
220	#define CPU_SUBTYPE_PENTIUM_4_M CPU_SUBTYPE_INTEL(10, 1)
221	#define CPU_SUBTYPE_ITANIUM CPU_SUBTYPE_INTEL(11, 0)
222	#define CPU_SUBTYPE_ITANIUM_2 CPU_SUBTYPE_INTEL(11, 1)
223	#define CPU_SUBTYPE_XEON CPU_SUBTYPE_INTEL(12, 0)
224	#define CPU_SUBTYPE_XEON_MP CPU_SUBTYPE_INTEL(12, 1)
225
226	/* X86 */
227	#define CPU_SUBTYPE_X86_ALL INT32_C(3) /* CPU_SUBTYPE_I386_ALL */
228	#define CPU_SUBTYPE_X86_64_ALL INT32_C(3) /* CPU_SUBTYPE_I386_ALL */
229	#define CPU_SUBTYPE_X86_ARCH1 INT32_C(4) /* CPU_SUBTYPE_I486_ALL */
230
231	/* MIPS */
232	#define CPU_SUBTYPE_MIPS_ALL INT32_C(0)
233	#define CPU_SUBTYPE_MIPS_R2300 INT32_C(1)
234	#define CPU_SUBTYPE_MIPS_R2600 INT32_C(2)
235	#define CPU_SUBTYPE_MIPS_R2800 INT32_C(3)
236	#define CPU_SUBTYPE_MIPS_R2000a INT32_C(4)
237	#define CPU_SUBTYPE_MIPS_R2000 INT32_C(5)
238	#define CPU_SUBTYPE_MIPS_R3000a INT32_C(6)
239	#define CPU_SUBTYPE_MIPS_R3000 INT32_C(7)
240
241	/* MC98000 (PowerPC) */
242	#define CPU_SUBTYPE_MC98000_ALL INT32_C(0)
243	#define CPU_SUBTYPE_MC98601 INT32_C(1)
244
245	/* HP-PA */
246	#define CPU_SUBTYPE_HPPA_ALL INT32_C(0)
247	#define CPU_SUBTYPE_HPPA_7100 INT32_C(0)
248	#define CPU_SUBTYPE_HPPA_7100LC INT32_C(1)
249
250	/* MC88000 */
251	#define CPU_SUBTYPE_MC88000_ALL INT32_C(0)
252	#define CPU_SUBTYPE_MC88100 INT32_C(1)
253	#define CPU_SUBTYPE_MC88110 INT32_C(2)
254
255	/* SPARC */
256	#define CPU_SUBTYPE_SPARC_ALL INT32_C(0)
257
258	/* I860 */
259	#define CPU_SUBTYPE_I860_ALL INT32_C(0)
260	#define CPU_SUBTYPE_I860_860 INT32_C(1)
261
262	/* PowerPC */
263	#define CPU_SUBTYPE_POWERPC_ALL INT32_C(0)
264	#define CPU_SUBTYPE_POWERPC_601 INT32_C(1)
265	#define CPU_SUBTYPE_POWERPC_602 INT32_C(2)
266	#define CPU_SUBTYPE_POWERPC_603 INT32_C(3)
267	#define CPU_SUBTYPE_POWERPC_603e INT32_C(4)
268	#define CPU_SUBTYPE_POWERPC_603ev INT32_C(5)
269	#define CPU_SUBTYPE_POWERPC_604 INT32_C(6)
270	#define CPU_SUBTYPE_POWERPC_604e INT32_C(7)
271	#define CPU_SUBTYPE_POWERPC_620 INT32_C(8)
272	#define CPU_SUBTYPE_POWERPC_750 INT32_C(9)
273	#define CPU_SUBTYPE_POWERPC_7400 INT32_C(10)
274	#define CPU_SUBTYPE_POWERPC_7450 INT32_C(11)
275	#define CPU_SUBTYPE_POWERPC_Max INT32_C(10)
276	#define CPU_SUBTYPE_POWERPC_SCVger INT32_C(11)
277	#define CPU_SUBTYPE_POWERPC_970 INT32_C(100)
278
279	/** @} */
280
281
282
283	/** @defgroup grp_macho_o_lc Load Commands
284	* @{ */
285
286	/**
287	* The load command common core structure.
288	*
289	* After the Mach-O header follows an array of variable sized
290	* load command which all has this header in common.
291	*/
292	typedef struct load_command
293	{
294	uint32_t cmd; /*< The load command id. /
295	uint32_t cmdsize; /*< The size of the command (including this header). /
296	} load_command_t;
297
298	/** @name Load Command IDs (load_command::cmd)
299	* @{
300	*/
301	/** Flag that when set requires the dynamic linker to fail if it doesn't
302	* grok the command. The dynamic linker will otherwise ignore commands it
303	* doesn't understand. Introduced with Mac OS X 10.1. */
304	#define LC_REQ_DYLD UINT32_C(0x80000000)
305
306	#define LC_SEGMENT_32 UINT32_C(0x01) /*< Segment to be mapped (32-bit). See segment_command_32. /
307	#define LC_SYMTAB UINT32_C(0x02) /*< 'stab' symbol table. See symtab_command. /
308	#define LC_SYMSEG UINT32_C(0x03) /*< Obsoleted gdb symbol table. /
309	#define LC_THREAD UINT32_C(0x04) /*< Thread. See thread_command. /
310	#define LC_UNIXTHREAD UINT32_C(0x05) /*< Unix thread (includes stack and stuff). See thread_command. /
311	#define LC_LOADFVMLIB UINT32_C(0x06) /*< Load a specified fixed VM shared library (obsolete?). See fvmlib_command. /
312	#define LC_IDFVMLIB UINT32_C(0x07) /*< Fixed VM shared library id (obsolete?). See fvmlib_command. /
313	#define LC_IDENT UINT32_C(0x08) /*< Identification info (obsolete). See ident_command. /
314	#define LC_FVMFILE UINT32_C(0x09) /*< Fixed VM file inclusion (internal). See fvmfile_command. /
315	#define LC_PREPAGE UINT32_C(0x0a) /*< Prepage command (internal). See ?? /
316	#define LC_DYSYMTAB UINT32_C(0x0b) /*< Symbol table for dynamic linking. See dysymtab_command. /
317	#define LC_LOAD_DYLIB UINT32_C(0x0c) /*< Load a dynamically linked shared library. See dylib_command. /
318	#define LC_ID_DYLIB UINT32_C(0x0d) /*< Dynamically linked share library ident. See dylib_command. /
319	#define LC_LOAD_DYLINKER UINT32_C(0x0e) /*< Load a dynamical link editor. See dylinker_command. /
320	#define LC_ID_DYLINKER UINT32_C(0x0f) /*< Dynamic link editor ident. See dylinker_command. /
321	#define LC_PREBOUND_DYLIB UINT32_C(0x10) /*< Prebound modules for dynamically linking of a shared lib. See prebound_dylib_command. /
322	#define LC_ROUTINES UINT32_C(0x11) /*< Image routines. See routines_command_32. /
323	#define LC_SUB_FRAMEWORK UINT32_C(0x12) /*< Sub framework. See sub_framework_command. /
324	#define LC_SUB_UMBRELLA UINT32_C(0x13) /*< Sub umbrella. See sub_umbrella_command. /
325	#define LC_SUB_CLIENT UINT32_C(0x14) /*< Sub client. See sub_client_command. /
326	#define LC_SUB_LIBRARY UINT32_C(0x15) /*< Sub library. See sub_library_command. /
327	#define LC_TWOLEVEL_HINTS UINT32_C(0x16) /*< Two-level namespace lookup hints. See twolevel_hints_command. /
328	#define LC_PREBIND_CKSUM UINT32_C(0x17) /*< Prebind checksum. See prebind_cksum_command. /
329	#define LC_LOAD_WEAK_DYLIB (UINT32_C(0x18) \| LC_REQ_DYLD) /*< Dylib that can be missing, all symbols weak. See dylib_command. /
330	#define LC_SEGMENT_64 UINT32_C(0x19) /*< segment to be mapped (64-bit). See segment_command_32. /
331	#define LC_ROUTINES_64 UINT32_C(0x1a) /*< Image routines (64-bit). See routines_command_32. /
332	#define LC_UUID UINT32_C(0x1b) /*< The UUID of the object module. See uuid_command. /
333	/** @} */
334
335
336	/**
337	* Load Command String.
338	*/
339	typedef struct lc_str
340	{
341	/** Offset of the string relative to the load_command structure.
342	* The string is zero-terminated. the size of the load command
343	* is zero padded up to a multiple of 4 bytes. */
344	uint32_t offset;
345	} lc_str_t;
346
347
348	/**
349	* Segment load command (32-bit).
350	*/
351	typedef struct segment_command_32
352	{
353	uint32_t cmd; /*< LC_SEGMENT /
354	uint32_t cmdsize; /*< sizeof(self) + sections. /
355	char segname[16]; /*< The segment name. /
356	uint32_t vmaddr; /*< Memory address of this segment. /
357	uint32_t vmsize; /*< Size of this segment. /
358	uint32_t fileoff; /*< The file location of the segment. /
359	uint32_t filesize; /*< The file size of the segment. /
360	uint32_t maxprot; /*< Maximum VM protection. /
361	uint32_t initprot; /*< Initial VM protection. /
362	uint32_t nsects; /*< Number of section desciptors following this structure. /
363	uint32_t flags; /*< Flags (SG_). */
364	} segment_command_32_t;
365
366
367	/**
368	* Segment load command (64-bit).
369	* Same as segment_command_32 except 4 members has been blown up to 64-bit.
370	*/
371	typedef struct segment_command_64
372	{
373	uint32_t cmd; /*< LC_SEGMENT /
374	uint32_t cmdsize; /*< sizeof(self) + sections. /
375	char segname[16]; /*< The segment name. /
376	uint64_t vmaddr; /*< Memory address of this segment. /
377	uint64_t vmsize; /*< Size of this segment. /
378	uint64_t fileoff; /*< The file location of the segment. /
379	uint64_t filesize; /*< The file size of the segment. /
380	uint32_t maxprot; /*< Maximum VM protection. /
381	uint32_t initprot; /*< Initial VM protection. /
382	uint32_t nsects; /*< Number of section desciptors following this structure. /
383	uint32_t flags; /*< Flags (SG_). */
384	} segment_command_64_t;
385
386	/** @name Segment flags (segment_command_64::flags, segment_command_32::flags)
387	* @{ */
388	/** Map the file bits in the top end of the memory area for the segment
389	* instead of the low end. Intended for stacks in core dumps.
390	* The part of the segment memory not covered by file bits will be zeroed. */
391	#define SG_HIGHVM UINT32_C(0x00000001)
392	/** This segment is the virtual memory allocated by a fixed VM library.
393	* (Used for overlap checking in the linker.) */
394	#define SG_FVMLIB UINT32_C(0x00000002)
395	/** No relocations for or symbols that's relocated to in this segment.
396	* The segment can therefore safely be replaced. */
397	#define SG_NORELOC UINT32_C(0x00000004)
398	/** The segment is protected.
399	* The first page isn't protected if it starts at file offset 0
400	* (so that the mach header and this load command can be easily mapped). */
401	#define SG_PROTECTED_VERSION_1 UINT32_C(0x00000008)
402	/** @} */
403
404
405	/**
406	* 32-bit section (part of a segment load command).
407	*/
408	typedef struct section_32
409	{
410	char sectname[16]; /*< The section name. /
411	char segname[16]; /*< The name of the segment this section goes into. /
412	uint32_t addr; /*< The memory address of this section. /
413	uint32_t size; /*< The size of this section. /
414	uint32_t offset; /*< The file offset of this section. /
415	uint32_t align; /< The section alignment (2). */
416	uint32_t reloff; /*< The file offset of the relocations. /
417	uint32_t nreloc; /*< The number of relocations. /
418	uint32_t flags; /*< The section flags; section type and attribs /
419	uint32_t reserved1; /*< Reserved / offset / index. /
420	uint32_t reserved2; /*< Reserved / count / sizeof. /
421	} section_32_t;
422
423	/**
424	* 64-bit section (part of a segment load command).
425	*/
426	typedef struct section_64
427	{
428	char sectname[16]; /*< The section name. /
429	char segname[16]; /*< The name of the segment this section goes into. /
430	uint64_t addr; /*< The memory address of this section. /
431	uint64_t size; /*< The size of this section. /
432	uint32_t offset; /*< The file offset of this section. /
433	uint32_t align; /< The section alignment (2). */
434	uint32_t reloff; /*< The file offset of the relocations. /
435	uint32_t nreloc; /*< The number of relocations. /
436	uint32_t flags; /*< The section flags; section type and attribs /
437	uint32_t reserved1; /*< Reserved / offset / index. /
438	uint32_t reserved2; /*< Reserved / count / sizeof. /
439	uint32_t reserved3; /*< (Just) Reserved. /
440	} section_64_t;
441
442	/** @name Section flags (section_64::flags, section_32::flags)
443	* @{
444	*/
445	/** Section type mask. */
446	#define SECTION_TYPE UINT32_C(0x000000ff)
447	/** Regular section. */
448	#define S_REGULAR 0x0
449	/** Zero filled section. */
450	#define S_ZEROFILL 0x1
451	/** C literals. */
452	#define S_CSTRING_LITERALS 0x2
453	/** 4 byte literals. */
454	#define S_4BYTE_LITERALS 0x3
455	/** 8 byte literals. */
456	#define S_8BYTE_LITERALS 0x4
457	/** Pointer to literals. */
458	#define S_LITERAL_POINTERS 0x5
459	/** Section containing non-lazy symbol pointers.
460	* Reserved1 == start index in the indirect symbol table. */
461	#define S_NON_LAZY_SYMBOL_POINTERS 0x6
462	/** Section containing lazy symbol pointers.
463	* Reserved1 == start index in the indirect symbol table. */
464	#define S_LAZY_SYMBOL_POINTERS 0x7
465	/** Section containing symbol stubs.
466	* Reserved2 == stub size. */
467	#define S_SYMBOL_STUBS 0x8
468	/** Section containing function pointers for module initialization. . */
469	#define S_MOD_INIT_FUNC_POINTERS 0x9
470	/** Section containing function pointers for module termination. . */
471	#define S_MOD_TERM_FUNC_POINTERS 0xa
472	/** Section containing symbols that are to be coalesced. */
473	#define S_COALESCED 0xb
474	/** Zero filled section that be larger than 4GB. */
475	#define S_GB_ZEROFILL 0xc
476	/** Section containing pairs of function pointers for interposing. */
477	#define S_INTERPOSING 0xd
478	/** 16 byte literals. */
479	#define S_16BYTE_LITERALS 0xe
480
481	/** Section attribute mask. */
482	#define SECTION_ATTRIBUTES UINT32_C(0xffffff00)
483
484	/** User settable attribute mask. */
485	#define SECTION_ATTRIBUTES_USR UINT32_C(0xff000000)
486	/** Pure instruction (code). */
487	#define S_ATTR_PURE_INSTRUCTIONS UINT32_C(0x80000000)
488	/** ranlib, ignore my symbols... */
489	#define S_ATTR_NO_TOC UINT32_C(0x40000000)
490	/** May strip static symbols when linking int a MH_DYLDLINK file. */
491	#define S_ATTR_STRIP_STATIC_SYMS UINT32_C(0x20000000)
492	/** No dead stripping. */
493	#define S_ATTR_NO_DEAD_STRIP UINT32_C(0x10000000)
494	/** Live support. */
495	#define S_ATTR_LIVE_SUPPORT UINT32_C(0x08000000)
496	/** Contains self modifying code (generally i386 code stub for dyld). */
497	#define S_ATTR_SELF_MODIFYING_CODE UINT32_C(0x04000000)
498	/** Debug info (DWARF usually). */
499	#define S_ATTR_DEBUG UINT32_C(0x02000000)
500
501	/** System settable attribute mask. */
502	#define SECTION_ATTRIBUTES_SYS UINT32_C(0x00ffff00)
503	/** Contains some instructions (code). */
504	#define S_ATTR_SOME_INSTRUCTIONS UINT32_C(0x00000400)
505	/** Has external relocations. */
506	#define S_ATTR_EXT_RELOC UINT32_C(0x00000200)
507	/** Has internal (local) relocations. */
508	#define S_ATTR_LOC_RELOC UINT32_C(0x00000100)
509	/** @} */
510
511	/** @name Known Segment and Section Names.
512	* Some of these implies special linker behaviour.
513	* @{
514	*/
515	/** Page zero - not-present page for catching invalid access. (MH_EXECUTE typically) */
516	#define SEG_PAGEZERO "__PAGEZERO"
517	/** Traditional UNIX text segment.
518	* Defaults to R-X. */
519	#define SEG_TEXT "__TEXT"
520	/** The text part of SEG_TEXT. */
521	#define SECT_TEXT "__text"
522	/** The fvmlib initialization. */
523	#define SECT_FVMLIB_INIT0 "__fvmlib_init0"
524	/** The section following the fvmlib initialization. */
525	#define SECT_FVMLIB_INIT1 "__fvmlib_init1"
526	/** The traditional UNIX data segment. (DGROUP to DOS and OS/2 people.) */
527	#define SEG_DATA "__DATA"
528	/** The initialized data section. */
529	#define SECT_DATA "__data"
530	/** The uninitialized data section. */
531	#define SECT_BSS "__bss"
532	/** The common symbol section. */
533	#define SECT_COMMON "__common"
534	/** Objective-C runtime segment. */
535	#define SEG_OBJC "__OBJC"
536	/** Objective-C symbol table section. */
537	#define SECT_OBJC_SYMBOLS "__symbol_table"
538	/** Objective-C module information section. */
539	#define SECT_OBJC_MODULES "__module_info"
540	/** Objective-C string table section. */
541	#define SECT_OBJC_STRINGS "__selector_strs"
542	/** Objective-C string table section. */
543	#define SECT_OBJC_REFS "__selector_refs"
544	/** Icon segment. */
545	#define SEG_ICON "__ICON"
546	/** The icon headers. */
547	#define SECT_ICON_HEADER "__header"
548	/** The icons in the TIFF format. */
549	#define SECT_ICON_TIFF "__tiff"
550	/** ld -seglinkedit segment containing all the structs create and maintained
551	* by the linker. MH_EXECUTE and MH_FVMLIB only. */
552	#define SEG_LINKEDIT "__LINKEDIT"
553	/** The unix stack segment. */
554	#define SEG_UNIXSTACK "__UNIXSTACK"
555	/** The segment for the self modifying code for dynamic linking.
556	* Implies RWX permissions. */
557	#define SEG_IMPORT "__IMPORT"
558	/** @} */
559
560
561	/** @todo fvmlib */
562	/** @todo fvmlib_command (LC_IDFVMLIB or LC_LOADFVMLIB) */
563	/** @todo dylib */
564	/** @todo dylib_command (LC_ID_DYLIB, LC_LOAD_DYLIB, LC_LOAD_WEAK_DYLIB) */
565	/** @todo sub_framework_command (LC_SUB_FRAMEWORK) */
566	/** @todo sub_client_command (LC_SUB_CLIENT) */
567	/** @todo sub_umbrella_command (LC_SUB_UMBRELLA) */
568	/** @todo sub_library_command (LC_SUB_LIBRARY) */
569	/** @todo prebound_dylib_command (LC_PREBOUND_DYLIB) */
570	/** @todo dylinker_command (LC_ID_DYLINKER or LC_LOAD_DYLINKER) */
571
572
573	/**
574	* Thread command.
575	*
576	* State description of a thread that is to be created. The description
577	* is made up of a number of state structures preceded by a 32-bit flavor
578	* and 32-bit count field stating the kind of stat structure and it's size
579	* in uint32_t items respecitvly.
580	*
581	* LC_UNIXTHREAD differs from LC_THREAD in that it implies stack creation
582	* and that it's started with the typical main(int, char , char ) frame
583	* on the stack.
584	*/
585	typedef struct thread_command
586	{
587	uint32_t cmd; /*< LC_UNIXTHREAD or LC_THREAD. /
588	uint32_t cmdsize; /*< The size of the command (including this header). /
589	} thread_command_t;
590
591
592	/** @todo routines_command (LC_ROUTINES) */
593	/** @todo routines_command_64 (LC_ROUTINES_64) */
594
595
596	/**
597	* Symbol table command.
598	* Contains a.out style symbol table with some tricks.
599	*/
600	typedef struct symtab_command
601	{
602	uint32_t cmd; /*< LC_SYMTAB /
603	uint32_t cmdsize; /** sizeof(symtab_command_t) */
604	uint32_t symoff; /** The file offset of the symbol table. */
605	uint32_t nsyms; /** The number of symbols in the symbol table. */
606	uint32_t stroff; /** The file offset of the string table. */
607	uint32_t strsize; /** The size of the string table. */
608	} symtab_command_t;
609
610
611	/** @todo dysymtab_command (LC_DYSYMTAB) */
612	/** @todo dylib_table_of_contents */
613	/** @todo dylib_module_32 */
614	/** @todo dylib_module_64 */
615	/** @todo dylib_reference */
616	/** @todo twolevel_hints_command (LC_TWOLEVEL_HINTS) */
617	/** @todo twolevel_hint */
618	/** @todo prebind_cksum_command (LC_PREBIND_CKSUM) */
619
620
621	/**
622	* UUID generated by ld.
623	*/
624	typedef struct uuid_command
625	{
626	uint32_t cmd; /*< LC_UUID /
627	uint32_t cmdsize; /*< sizeof(uuid_command_t) /
628	uint8_t uuid[16]; /** The UUID bytes. */
629	} uuid_command_t;
630
631
632	/** @todo symseg_command (LC_SYMSEG) */
633	/** @todo ident_command (LC_IDENT) */
634	/** @todo fvmfile_command (LC_FVMFILE) */
635
636	/** @} */
637
638
639
640	/** @defgroup grp_macho_o_syms Symbol Table
641	* @{ */
642
643	/**
644	* The 32-bit Mach-O version of the nlist structure.
645	*
646	* This differs from the a.out nlist struct in that the unused n_other field
647	* was renamed to n_sect and used for keeping the relevant section number.
648	* @remark This structure is not name mach_nlist_32 in the Apple headers, but nlist.
649	*/
650	typedef struct macho_nlist_32
651	{
652	union
653	{
654	int32_t n_strx; /*< Offset (index) into the string table. 0 means "". /
655	} n_un;
656	uint8_t n_type; /*< Symbol type. /
657	uint8_t n_sect; /*< Section number of NO_SECT. /
658	int16_t n_desc; /*< Type specific, debug info details mostly./
659	uint32_t n_value; /*< The symbol value or stab offset. /
660	} macho_nlist_32_t;
661
662
663	/**
664	* The 64-bit Mach-O version of the nlist structure.
665	* @see macho_nlist_32
666	*/
667	typedef struct macho_nlist_64
668	{
669	union
670	{
671	uint32_t n_strx; /*< Offset (index) into the string table. 0 means "". /
672	} n_un;
673	uint8_t n_type; /*< Symbol type. /
674	uint8_t n_sect; /*< Section number of NO_SECT. /
675	int16_t n_desc; /*< Type specific, debug info details mostly./
676	uint64_t n_value; /*< The symbol value or stab offset. /
677	} macho_nlist_64_t;
678
679
680	/** @name Symbol Type Constants (macho_nlist_32_t::n_type, macho_nlist_64_t::n_type)
681	*
682	* In the Mach-O world n_type is somewhat similar to a.out, meaning N_EXT, N_UNDF, N_ABS
683	* and the debug symbols are essentially the same, but the remaining stuff is different.
684	* The main reason for this is that the encoding of section has been moved to n_sect
685	* to permit up to 255 sections instead of the fixed 3 a.out sections (not counting
686	* the abs symbols and set vectors).
687	*
688	* To avoid confusion with a.out the Mach-O constants has been fitted with a MACHO_
689	* prefix here.
690	*
691	* Common symbols (aka communal symbols and comdefs) are represented by
692	* n_type = MACHO_N_EXT \| MACHO_N_UNDF, n_sect = NO_SECT and n_value giving
693	* the size.
694	*
695	*
696	* Symbol table entries can be inserted directly in the assembly code using
697	* this notation:
698	* @code
699	* .stabs "n_name", n_type, n_sect, n_desc, n_value
700	* @endcode
701	*
702	* (1) The line number is optional, GCC doesn't set it.
703	* (2) The type is optional, GCC doesn't set it.
704	* (3) The binutil header is "skeptical" about the line. I'm skeptical about the whole thing... :-)
705	* (M) Mach-O specific?
706	* (S) Sun specific?
707	* @{
708	*/
709
710	/* Base masks. */
711	#define MACHO_N_EXT UINT8_C(0x01) /*< External symbol (when set) (N_EXT). /
712	#define MACHO_N_TYPE UINT8_C(0x0e) /*< Symbol type (N_TYPE without the 8th bit). /
713	#define MACHO_N_PEXT UINT8_C(0x10) /*< Private extern symbol (when set). (M) /
714	#define MACHO_N_STAB UINT8_C(0xe0) /*< Debug symbol mask (N_STAB). /
715
716	/* MACHO_N_TYPE values. */
717	#define MACHO_N_UNDF UINT8_C(0x00) /*< MACHO_N_TYPE: Undefined symbol (N_UNDF). n_sect = NO_SECT. /
718	#define MACHO_N_ABS UINT8_C(0x02) /*< MACHO_N_TYPE: Absolute symbol (N_UNDF). n_sect = NO_SECT. /
719	#define MACHO_N_INDR UINT8_C(0x0a) /*< MACHO_N_TYPE: Indirect symbol, n_value is the index of the symbol. (M) /
720	#define MACHO_N_PBUD UINT8_C(0x0c) /*< MACHO_N_TYPE: Prebound undefined symbo (defined in a dylib). (M) /
721	#define MACHO_N_SECT UINT8_C(0x0e) /*< MACHO_N_TYPE: Defined in the section given by n_sects. (M) /
722
723	/* Debug symbols. */
724	#define MACHO_N_GSYM UINT8_C(0x20) /*< Global variable. "name",, NO_SECT, type, 0 (2) /
725	#define MACHO_N_FNAME UINT8_C(0x22) /*< Function name (F77). "name",, NO_SECT, 0, 0 /
726	#define MACHO_N_FUN UINT8_C(0x24) /*< Function / text var. "name",, section, line, address (1) /
727	#define MACHO_N_STSYM UINT8_C(0x26) /*< Static data symbol. "name",, section, type, address (2) /
728	#define MACHO_N_LCSYM UINT8_C(0x28) /*< static bss symbol. "name",, section, type, address (2) /
729	/* omits N_MAIN and N_ROSYM. */
730	#define MACHO_N_BNSYM UINT8_C(0x2e) /*< Begin nsect symbol. 0,, section, 0, address (M) /
731	#define MACHO_N_PC UINT8_C(0x30) /*< Global pascal symbol. "name",, NO_SECT, subtype?, line (3) /
732	/* omits N_NSYMS, N_NOMAP and N_OBJ. */
733	#define MACHO_N_OPT UINT8_C(0x3c) /**< Options for the debugger related to the language of the
734	source file. "options?",,,, */
735	#define MACHO_N_RSYM UINT8_C(0x40) /*< Register variable. "name",, NO_SECT, type, register /
736	/* omits N_M2C */
737	#define MACHO_N_SLINE UINT8_C(0x44) /*< Source line. 0,, section, line, address /
738	/* omits N_DSLINE, N_BSLINE / N_BROWS, N_DEFD and N_FLINE. */
739	#define MACHO_N_ENSYM UINT8_C(0x4e) /*< End nsect symbol. 0,, section, 0, address (M) /
740	/* omits N_EHDECL / N_MOD2 and N_CATCH. */
741	#define MACHO_N_SSYM UINT8_C(0x60) /*< Struct/union element. "name",, NO_SECT, type, offset /
742	/* omits N_ENDM */
743	#define MACHO_N_SO UINT8_C(0x64) /*< Source file name. "fname",, section, 0, address /
744	#define MACHO_N_OSO UINT8_C(0x66) /*< Object file name. "fname",, 0, 0, st_mtime (M?) /
745	/* omits N_ALIAS */
746	#define MACHO_N_LSYM UINT8_C(0x80) /*< Stack variable. "name",, NO_SECT, type, frame_offset /
747	#define MACHO_N_BINCL UINT8_C(0x82) /*< Begin #include. "fname",, NO_SECT, 0, sum? /
748	#define MACHO_N_SOL UINT8_C(0x84) /*< #included file. "fname",, section, 0, start_address (S) /
749	#define MACHO_N_PARAMS UINT8_C(0x86) /*< Compiler params. "params",, NO_SECT, 0, 0 /
750	#define MACHO_N_VERSION UINT8_C(0x88) /*< Compiler version. "version",, NO_SECT, 0, 0 /
751	#define MACHO_N_OLEVEL UINT8_C(0x8A) /*< Compiler -O level. "level",, NO_SECT, 0, 0 /
752	#define MACHO_N_PSYM UINT8_C(0xa0) /*< Parameter variable. "name",, NO_SECT, type, frame_offset /
753	#define MACHO_N_EINCL UINT8_C(0xa2) /*< End #include. "fname",, NO_SECT, 0, 0 (S) /
754	#define MACHO_N_ENTRY UINT8_C(0xa4) /*< Alternate entry point. "name",, section, line, address /
755	#define MACHO_N_LBRAC UINT8_C(0xc0) /*< Left bracket. 0,, NO_SECT, nesting_level, address /
756	#define MACHO_N_EXCL UINT8_C(0xc2) /*< Deleted include file. "fname",, NO_SECT, 0, sum? (S) /
757	/* omits N_SCOPE */
758	#define MACHO_N_RBRAC UINT8_C(0xe0) /*< Right bracket. 0,, NO_SECT, nesting_level, address /
759	#define MACHO_N_BCOMM UINT8_C(0xe2) /*< Begin common. "name",, NO_SECT?, 0, 0 /
760	#define MACHO_N_ECOMM UINT8_C(0xe4) /*< End common. "name",, section, 0, 0 /
761	#define MACHO_N_ECOML UINT8_C(0xe8) /*< End local common. 0,, section, 0, address /
762	#define MACHO_N_LENG UINT8_C(0xfe) /**< Length-value of the preceding entry.
763	"name",, NO_SECT, 0, length */
764
765	/** @} */
766
767	/** @name Symbol Description Bits (macho_nlist_32_t::n_desc, macho_nlist_64_t::n_desc)
768	*
769	* Mach-O puts the n_desc field to a number of uses, like lazy binding , library
770	* ordinal numbers for -twolevel_namespace, stripping and weak symbol handling.
771	*
772	* @remark The REFERENCE_FLAGS_* are really not flags in the normal sense (bit),
773	* they are more like enum values.
774	* @{
775	*/
776
777	#define REFERENCE_TYPE UINT16_C(0x000f) /*< The reference type mask. /
778	#define REFERENCE_FLAG_UNDEFINED_NON_LAZY 0 /*< Normal undefined symbol. /
779	#define REFERENCE_FLAG_UNDEFINED_LAZY 1 /*< Lazy undefined symbol. /
780	#define REFERENCE_FLAG_DEFINED 2 /*< Defined symbol (dynamic linking). /
781	#define REFERENCE_FLAG_PRIVATE_DEFINED 3 /*< Defined private symbol (dynamic linking). /
782	#define REFERENCE_FLAG_PRIVATE_UNDEFINED_NON_LAZY 4 /*< Normal undefined private symbol. /
783	#define REFERENCE_FLAG_PRIVATE_UNDEFINED_LAZY 5 /*< Lazy undefined private symbol. /
784
785	#define REFERENCED_DYNAMICALLY UINT16_C(0x0010) /*< Don't strip. /
786
787
788	/** Get the dynamic library ordinal. */
789	#define GET_LIBRARY_ORDINAL(n_desc) \
790	(((n_desc) >> 8) & 0xff)
791	/** Set the dynamic library ordinal. */
792	#define SET_LIBRARY_ORDINAL(n_desc, ordinal) \
793	(n_desc) = (((n_desc) & 0xff) \| (((ordinal) & 0xff) << 8))
794	#define SELF_LIBRARY_ORDINAL 0x00 /*< Special ordinal for refering to onself. /
795	#define MAX_LIBRARY_ORDINAL 0xfd /*< Maximum ordinal number. /
796	#define DYNAMIC_LOOKUP_ORDINAL 0xfe /*< Special ordinal number for dynamic lookup. (Mac OS X 10.3 and later) /
797	#define EXECUTABLE_ORDINAL 0xff /*< Special ordinal number for the executable. /
798
799
800	/** Only MH_OBJECT: Never dead strip me! */
801	#define N_NO_DEAD_STRIP UINT16_C(0x0020)
802	/** Not MH_OBJECT: Discarded symbol. */
803	#define N_DESC_DISCARDED UINT16_C(0x0020)
804	/** Weak external symbol. Symbol can be missing, in which case it's will have the value 0. */
805	#define N_WEAK_REF UINT16_C(0x0040)
806	/** Weak symbol definition. The symbol can be overridden by another weak
807	* symbol already present or by a non-weak (strong) symbol definition.
808	* Currently only supported for coalesed symbols.
809	* @remark This bit means something differently for undefined symbols, see N_REF_TO_WEAK.
810	*/
811	#define N_WEAK_DEF UINT16_C(0x0080)
812	/** Reference to a weak symbol, resolve using flat namespace searching.
813	* @remark This bit means something differently for defined symbols, see N_WEAK_DEF. */
814	#define N_REF_TO_WEAK UINT16_C(0x0080)
815
816	/** @} */
817
818	/** @} */
819
820
821	/** @defgroup grp_macho_o_relocs Relocations
822	* @{ */
823
824	/**
825	* Relocation entry.
826	*
827	* Differs from a.out in the meaning of r_symbolnum when r_extern=0 and
828	* that r_pad is made into r_type.
829	*
830	* @remark This structure and type has been prefixed with macho_ to avoid
831	* confusion with the original a.out type.
832	*/
833	typedef struct macho_relocation_info
834	{
835	int32_t r_address; /**< Section relative address of the fixup.
836	The top bit (signed) indicates that this is a scattered
837	relocation if set, see scattered_relocation_info_t. */
838	uint32_t r_symbolnum : 24, /**< r_extern=1: Symbol table index, relocate with the address of this symbol.
839	r_extern=0: Section ordinal, relocate with the address of this section. */
840	r_pcrel : 1, /*< PC (program counter) relative fixup; subtract the fixup address. /
841	r_length : 2, /*< Fixup length: 0=uint8_t, 1=uint16_t, 2=uint32_t, 3=uint64_t. /
842	r_extern : 1, /*< External or internal fixup, decides the r_symbolnum interpretation.. /
843	r_type : 4; /*< Relocation type; 0 is standard, non-zero are machine specific. /
844	} macho_relocation_info_t;
845
846	/** Special section ordinal value for absolute relocations. */
847	#define R_ABS 0
848
849	/** Flag in r_address indicating that the relocation is of the
850	* scattered_relocation_info_t kind and not macho_relocation_info_t. */
851	#define R_SCATTERED UINT32_C(0x80000000)
852
853	/**
854	* Scattered relocation.
855	*
856	* This is a hack mainly for RISC machines which restricts section size
857	* to 16MB among other things.
858	*
859	* The reason for the big/little endian differences here is of course because
860	* of the R_SCATTERED mask and the way bitfields are implemented by the
861	* C/C++ compilers.
862	*/
863	typedef struct scattered_relocation_info
864	{
865	#ifdef KLDR_LITTLE_ENDIAN
866	uint32_t r_address : 24, /*< Section relative address of the fixup. (macho_relocation_info_t::r_address) /
867	r_type : 4, /*< Relocation type; 0 is standard, non-zero are machine specific. (macho_relocation_info_t::r_type) /
868	r_length : 2, /*< Fixup length: 0=uint8_t, 1=uint16_t, 2=uint32_t, 3=uint64_t. (macho_relocation_info_t::r_length) /
869	r_pcrel : 1, /*< PC (program counter) relative fixup; subtract the fixup address. (macho_relocation_info_t::r_pcrel) /
870	r_scattered : 1; /*< Set if scattered relocation, clear if normal relocation. /
871	#elif defined(KLDR_BIG_ENDIAN)
872	uint32_t r_scattered : 1, /*< Set if scattered relocation, clear if normal relocation. /
873	r_pcrel : 1, /*< PC (program counter) relative fixup; subtract the fixup address. (macho_relocation_info_t::r_pcrel) /
874	r_length : 2, /*< Fixup length: 0=uint8_t, 1=uint16_t, 2=uint32_t, 3=uint64_t. (macho_relocation_info_t::r_length) /
875	r_type : 4, /*< Relocation type; 0 is standard, non-zero are machine specific. (macho_relocation_info_t::r_type) /
876	r_address : 24; /*< Section relative address of the fixup. (macho_relocation_info_t::r_address) /
877	#else
878	# error "Neither KLDR_LITTLE_ENDIAN nor KLDR_BIG_ENDIAN is defined!"
879	#endif
880	int32_t r_value; /*< The value the fixup is refering to (without offset added). /
881	} scattered_relocation_info_t;
882
883	/**
884	* Relocation type values for a generic implementation (for r_type).
885	*/
886	typedef enum reloc_type_generic
887	{
888	GENERIC_RELOC_VANILLA = 0, /*< Standard relocation. /
889	GENERIC_RELOC_PAIR, /*< Follows GENERIC_RELOC_SECTDIFF. /
890	GENERIC_RELOC_SECTDIFF, /*< ??? /
891	GENERIC_RELOC_PB_LA_PTR, /*< Prebound lazy pointer whatever that. /
892	GENERIC_RELOC_LOCAL_SECTDIFF /*< ??? /
893	} reloc_type_generic_t;
894
895	/** @} */
896
897
898	/** @} */
899	#endif
900

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